Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Light stable quinacridonequinone yellow pigment

Light stable quinacridonequinone yellow pigment

US Patent 4286998 · Granted Sep 1, 1981

Estimated economic value: $7,381,000 ⓘ

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Method and element for holographic replication2004
Method for purifying TiO.sub.2 ore by alternate leaching with an aqueous solutio1992
Method for duplicating press characteristic dot gain in electrostatic proofing s1991
Method for purifying TiO.sub.2 ore1991
Method and apparatus for high resolution liquid toner electrostatic transfer1989
Photographic element with antistatic polymers1989
Process for preparation of liquid electrostatic developer1988
Polybutylene succinimide as adjuvant for electrostatic liquid developer1987
Process for preparation of color liquid toner for electrostatic imaging using ca1987
Crosslinkable antistatic polymers and their manufacture1987
Process for preparing 2-anilinoacridone1985
Light stable quinacridonequinone pigments1984